单选题Vitamins are organic compounds necessary in small amounts in the diet for the normal growth and maintenance of life of animals, including man. They do not provide energy, 【C1】______do they construct or build any part of the body. They are needed for【C2】______foods into energy and body maintenance. There are thirteen or more of them, and if 【C3】______is missing a deficiency disease becomes【C4】______. Vitamins are similar because they are made of the same elements—usually carbon, hydrogen, oxygen, and【C5】______nitrogen. They are different【C6】______their elements are arranged differently, and each vitamin【C7】______one or more specific functions in the body. 【C8】______enough vitamins is essential to life, although the body has no nutritional use for 【C9】______vitamins. Many people, 【C10】______, believe in being on the "safe side" and thus take extra vitamins. However, a well balanced diet will usually meet all the body's vitamin needs.

单选题 Education is one of the key words of our time. A man, without an education, many of us believe, is an unfortunate victim of adverse circumstances deprived of one of the greatest twentieth-century opportunities. Convinced of the importance of education, modern states "invest" in institutions of learning to get back "interest" in the form of a large group of enlightened young men and women who are potential leaders. Education, with its cycles of instruction so carefully worked out, is punctuated by textbooks--those purchasable wells of wisdom--what would civilization be like without its benefits? So much is certain: that we would have doctors and preachers, lawyers and defendants, marriages and births; but our spiritual outlook would be different. We would lay less stress on "facts and figures" and more on a good memory, on applied psychology, and on the capacity of a man to get along with his fellow citizens. If our educational system were fashioned after its bookless past we would have the most democratic form of "college" imaginable. Among the people whom we like to call savages all knowledge inherited by tradition is shared by all; it is taught to every member of the tribe so that in this respect everybody is equally equipped for life. It is the ideal condition of the "equal start" which only our most progressive forms of modem education try to regain. In primitive cultures the obligation to seek and to receive the traditional instruction is binding to all. There are no "illiterates"--if the term can be applied to people without a script--while our own compulsory school attendance became law in Germany in 1642, in France in 1806, and in England 1876, and is still non-existent in a number of "civilized" nations. This shows how long it was before we deemed it necessary to make sure that 'all our children could share in the knowledge accumulated by the "happy few" during the past centuries. Education in the wilderness is not a matter of monetary means. All are entitled to an equal start. There is none of the hurry which, in our society, often hampers the full development of a growing personality. There, a child grows up under the ever-present attention of his parents, therefore the jungles and the grasslands know of no "juvenile delinquency". No necessity of making a living away from home results in neglect of children and no father is confronted with his inability to "buy" an education for his child.

单选题It is true that the alleged power of dreams to predict future events still remains unproved.

单选题WhichofthefollowingdidNOThappenin1623?

单选题While he was not dumber than an ox, he was not any smarter; so most of his classmates were lenient and helped him along. A. helpful B. merciful C. enthusiastic D. intelligent

单选题An______woman came to consult the doctor about her throat.

单选题The meeting was______over Wuhan.(2004年武汉大学考博试题)

单选题For the people who have never traveled across the Atlantic the voyage is a fantasy. But for the people who cross it frequently one crossing of the Atlantic is very much like an other, and they do not make the voyage for the (56) of its interest. Most of us are quite happy when we feel (57) to go to bed and pleased when the journey (58) On the first night this time I felt especially lazy and went to bed (59) earlier than usual. When I (60) my cabin, I was surprised (61) that I was to have a companion during my trip, which made me feel a little unhappy. I had expected (62) but there was a suitcase (63) mine in the opposite corner. I wondered who he could be and what he would be like. Soon afterwards he came in. He was the sort of man you might meet (64) , except that he was wearing (65) good clothes that I made up my mind that we would not (66) whoever he was and did not say (67) .As I had expected, he did not talk to me either but went to bed immediately. I suppose I slept for several hours because when I woke up it was already the middle of the night. I felt cold but covered68as well as I could and tried to go back to sleep. Then I real ized that a (69) was coming from the window opposite. I thought perhaps I had forgotten (70) the door, so I got up (71) the door but found it already locked from the inside. The cold air was coming from the window opposite. I crossed the room and (72) the moon shone through it on to the other bed. (73) there. It took me a minute or two to (74) the door myself. I realized that my companion (75) through the window into the sea.

单选题The great question that this paper will, but feebly, attempt to answer is, What is the creative process? Though much theory has accumulated, little is really known about the power that lies at tile bottom of poetic creation. It is true that great poets and artists produce beauty by employing all the powers of personality and by fusing emotions, reason, and intuitions. But what is the magical synthesis that joins and arranges these complex parts into poetic unity? John L. Lowes, in his justly famous The Road to Xanadu, developed one of the earliest and still generally acceptable answers to this tantalizing question. Imaginative creation, he concludes, is a complex process in which the conscious and unconscious minds "jointly operate." "There is…the deep well with its chaos of fortuitously blending images; but there is likewise the Vision which sees shining in and through the chaos the potential lines of Form, and with the Vision, the controlling Will, which gives to that potential beauty actuality." The Deep Well is the unconscious mind that is peopled with the facts, ideas, feelings of conscious activity. The imaginative vision, an unconscious activity, shines through the land of chaos, of lights and shadows, silently seeking pattern and form. Finally, the conscious mind again, through Will, captures and embodies the idea in the final work of art. In this way is unity born out of chaos. Though there can be no absolute certainty, there is general agreement that the periods in the development of a creative work parallel, to some extent, Lowes' theory of Well, Vision, Form, and Will. There are at least three stages in the creative process: preparation, inspiration, work. In a sense, the period of preparation is all of the writer's life. It is the Deep Well. It is especially a period of concentration which gives the unconscious mind an opportunity to communicate with the conscious mind. When remembrance of things past reaches the conscious level of the writer's mind, he is ready to go on with the process. Part of this preparation involves learning a medium--learning a language, learning how to write, learning literary forum. It is important to note here that form cannot be imposed upon the idea. Evidence, though sparse, shows that the idea gives birth to the form that can best convey it. It is the Vision, according to Lowes, "which sees shining in and through the chaos the potential lines of Form …/

单选题Among humans, the effects of aging vary from one individual to another. The average life ______ for Americans is around 75 years, almost twice what it was in the early 1900s.

单选题The Smithsonian houses a miscellaneous collection of aircraft, artifacts, butterflies, stones [both precious and common], and so on.

单选题______ what has been said, it is unlike that population growth will be halted, either in the developed or in the undeveloped world.

单选题Why did he want to talk to her?

单选题In 1885 Owen Wister (1850～1938) recorded that "it won't be a century before the West is simply the true America, with thought, type, and life of its own" and he wanted "to be the hand that once, for all, chronicled and laid bare the virtues and the vices of this extraordinary phase of American social progress." He never became that self-envisioned Tolstoi of the old West, but in 1902 The Virginian was published. It won instant success and skyrocketed its author to fame. It is still the most popular "Western" novel ever published and the master design for the fiction of the Wild West. The Virginian established a literary form, a formula popularly known as "horse opera", whose conventions, cliches, and values have reappeared in novels and short stories, in movies and television serials, ever since. The romantic cowboy is the hero and gentleman, one of those "good men in the humbler walks of life", who sees through shams, defends justice and a lady's honor, shoots it out with the villain and conquers evil. Because of The Virginian, Wister created a character who is the original type for the Western folk hero. He represents the embodiment of certain American ideals--a man who is equal to all occasions, who shows independence of action, a man who keeps his word who is "a broad-guage fellow living among narrow-guage folk". But the literary device and cowboy code which Wister established dictated that the hero must kill the bad man. This necessity for sanctioning murder and romanticizing of the cowboy as a gentleman prohibited The Virginian and the genre it created from becoming serious fiction, or even an authentic product of the western experience. Instead of achieving his ambition, therefore, Wister gave us a sort of American folk epic, the cowboy story.

单选题It can be inferred from the passage that most icebergs ______.

单选题Most visitors to that peninsula find the breathtaking scenery, which features the sea and rocks, a great ______.

单选题Over the past century, all kinds of unfairness and discrimination have been condemned or made illegal. But one insidious form continues to thrive: alphabetism. This, for those as yet unaware of such a disadvantage, refers to discrimination against those whose surnames begin with a letter in the lower half of the alphabet. It has long been known that a taxi firm called AAAA cars has a big advantage over Zodiac cars when customers thumb through their phone directories. Less well known is the advantage that Adam Abbott has in life over Zoe Zysman. English names are fairly evenly spread between the halves of the alphabet. Yet a suspiciously large number of top people have surnames beginning with letters between A and K. Thus the American president and vice-president have surnames starting with B and C respectively; and 26 of George Bush"s predecessors (including his father) had surnames in the first half of the alphabet against just 16 in the second half. Even more striking, six of the seven heads of government of the G7 rich countries are alphabetically advantaged (Berlusconi, Blair, Bush, Chirac, Chretien and Koizumi). The world"s three top central bankers (Greenspan, Duisenberg and Hayami) are all close to the top of the alphabet, even if one of them really uses Japanese characters. As are the world"s five richest men (Gates, Buffett, Allen, Ellison and Albrecht). Can this merely be coincidence? One theory, dreamt up in all the spare time enjoyed by the alphabetically disadvantaged, is that the ret sets in early. At the start of the first year in infant school, teachers seat pupils alphabetically from the front, to make it easier to remember their names. So shortsighted Zysman junior gets stuck in the back row, and is rarely asked the improving questions posed by those insensitive teachers. At the time the alphabetically disadvantaged may think they have had a lucky escape. Yet the result may be worse qualifications, because they get less individual attention, as well as less confidence in speaking publicly. The humiliation continues. At university graduation ceremonies, the ABCs proudly get their awards first; by the time they reach the Zysmans most people are literally having a ZZZ. Shortlists for job interviews, election ballot papers, lists of conference speakers and attendees: all tend to be drawn up alphabetically, and their recipients lose interest as they plough through them.

单选题Cooperative competition. Competitive cooperation. Confused? Airline alliances have travelers scratching their heads over what' s going on in the skies. Some folks view alliances as a blessing to travelers, offering seamless travel, reduced fares and enhanced frequent-flyer benefits. Others see a conspiracy of big business, causing decreased competition, increased fares and fewer choices. Whatever your opinion, there' s no escaping airline alliances: the marketing hype is unrelenting, with each of the two mega-groupings. One world and Star Alliance, promoting itself as the best choice for all travelers. And, even if you turn away from their ads, chances are they will figure in any of your travel plans. By the end of the year, one world and Star Alliance will between them control more than 40% of the traffic in the sky. Some pundits predict that figure will be more like 75% in 10 years. But why, after years of often ferocious competition, have airlines decided to band together? Let' s just say the timing is mutually convenient. North American airlines, having exhausted all means of earning customer loyalty at home, have been looking for ways to reach out to foreign flyers. Asian carriers are still burring from the region-wide economic downturn that began two years ago— just when some of the airlines were taking delivery of new aircraft. Alliances also allow carriers to cut costs and increase profits by pooling manpower resources on the ground ( rather than each airline maintaining its own ground crew) and code-sharing--the practice of two partners selling tickets and operating only one aircraft. So alliances are terrific for airlines, but are they good for the passenger? Absolutely, say the airlines: think to the lounges, the joint FFP (frequent flyer programme) benefits, the round-the- world fares, and the global service networks. Then there' s the promise of "seamless" travel: the ability to, say, travel form Singapore to Rome to New York to Rio de Janiero, all on one ticket, without having to wait hours for connections or worry about your bags. Sounds utopian? Peter Buecking, Cathay Pacific' s director of sales and marketing, thinks that seamless travel is still evolving. "It's fair to say that these links are only in their infancy. The key to seamlessness rests in infrastructure and information sharing. We' re working on this." Henry Ma, spokesperson for Star Alliance in Hong Kong, lists stone of the other benefits for consumers: "Global travelers have an easier time making connections and planning their itineraries." Ma claims alliances also assure passengers consistent service standards. Critics of alliances say the much-touted benefits to the consumer are mostly pie in the sky, that alliances are all about reducing costs for the airlines, rationalizing services and running joint marketing programmes. Jeff Blyskal, associate editor of Consumer Reports magazine, says the promotional ballyhoo over alliances is much ado about nothing. "I don' t see much of a gain for consumers: alliances are just a marketing gimmick. And as far as seamless travel goes, I' II believe it when I see it. Most airlines can ' t even get their own connections under control, let alone coordinate with another airline." Blyskal believes alliances will ultimately result in decreased flight choices and increased costs for consumers. Instead of two airlines competing and each operating a flight on the same route at 70% capacity, the allied pair will share the route and ran one full flight. Since fewer seats will be available, passengers will be obliged to pay more for tickets. The truth about alliances and their merits probably lies somewhere between the travel utopia presented by the players and the evil empires portrayed by their critics. And how much they affect you depends on what kind of traveler you are. Those who have already made the elite grade in the FFP of a major airline stand to benefit the most when it joins an alliance: then they enjoy the FFP perks and advantages on any and all of the member carriers. For example, if you' re a Marco Polo Club "gold" member of Cathay Pacific' s Asia Miles FFP, you will automatically be treated as a valuable customer by all members, of one world, of which Cathay Pacific is a member, even if you' ye never flown with them before. For those who haven ' t made the top grade in any FFP, alliances might be a way of simplifying the earning of frequent flyer miles. For example, I belong to United Airline' s Mileage Plus and generally fly less than 25,000 miles a year. But I earn miles with every flight I take on Star Alliance member—All Nippon Airways and Thai Airways. If you fly less than I do, you might be smarter to stay out of the FFP game altogether, Hunt for bargains when booking flights and you might be able to save enough to take that extra trip any way. The only real benefit infrequent flyers can draw from an alliance is an inexpensive round-the-world fare. The bottom line: for all the marketing hype, alliances aren' t all things to all people, but everybody can get some benefit out of them.